My iPhone 7 apparently died, would not connect to service. So, I upgraded to a SE 2020. My old texts did not transfer, I also have them on my Ipadair2.
I still have the old phone with no service showing. So how can I get old texts to upload? Thanks!
Were/are you using Messages in iCloud? if so, see the 'Turn on Messages in iCloud' section in:
Use Messages in iCloud - Apple Support
If not, then your messages should have transferred from the backup of your old iPhone during the setup process.
Transfer data from your previous iOS device to your new iPhone, iPad, or iPod touch - Apple Support